Crankshaft with 22-tooth gear driven by oil pump for 139QMB/QMA

Original-quality replacement crankshaft for 50/90cc 4T engines (GY6 50, 139QMB/QMA). The crankshaft comes pre-assembled with main bearings and con rod.
GY6 engines come from the factory with 2 different crankshaft versions
The only difference is the oil pump sprocket on the right-hand side
The old version, fitted to almost all vehicles, has a 16-tooth gear
The new version has 22 teeth and is used, for example, on Rex models. To be sure, count the teeth on your sprocket and refer to the image provided.
This crankshaft has 22 teeth and can be fitted to applications that support a 16-tooth variant if items BT14782 + BT14783 are fitted (oil pump and oil pump drive gear)



Specifications


Brand
101 OCTANE


Supplier reference
BT7001-22


Product name
Crankshaft


Units
Unit